CN114717900A - Colored water-permeable integral pavement for high-speed service area and construction method - Google Patents
Colored water-permeable integral pavement for high-speed service area and construction method Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
- E01C11/226—Coherent pavings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The invention discloses a colored permeable integral pavement for a high-speed service area and a construction method, belonging to the field of colored permeable integral pavements and aiming at solving the problem that when the existing permeable pavement is used for the high-speed service area, impermeable foundation loads such as concrete and the like need to be adopted, and the low-influence development significance is lost, wherein the colored permeable integral pavement comprises a first leveling layer arranged on a plain soil layer; the first support layer is arranged on the first leveling layer; a second support layer disposed on the first support layer; a graded layer disposed on the second support layer; the second leveling layer is arranged on the grading layer; and the color permeable pavement surface layer is arranged on the second leveling layer. This application has improved permeable pavement structure, and the permeable pavement after the improvement is under the prerequisite that satisfies low influence development requirement, and its basis bearing and pavement surface course bending tensile property are showing and are promoted, can be applied to heavy load road surfaces such as high-speed service area. The water-permeable and water-permeable composite material is reasonable in design, ingenious in design and good in water permeability and bearing performance.
Description
Technical Field
The invention relates to the field of building materials, in particular to the field of colored permeable integral pavements, and specifically relates to a colored permeable integral pavement for a high-speed service area and a construction method thereof. The method and the device can be used for the construction of a high-speed service area, and have higher application value and better application prospect for the construction of a sponge city.
Background
In recent years, with the rapid development of highways, the number of service areas has also sharply increased. In order to meet corresponding strength requirements, surface pavement of the existing high-speed service area mostly adopts hardened building materials, and the designed structure is generally impermeable. Since the highway ground is generally higher than the service area ground, rainwater is easily gathered in the service area under the rainy condition, thereby forming surface ponding. The accumulated water on the ground of the expressway not only can obstruct people who get in and out of the service area, but also can affect the environment, so that the problem of road surface damage and the like can be caused.
The permeable pavement is known as the permeable pavement, and the permeable performance is excellent. However, the load-carrying performance of the existing permeable pavement is poor, and the indexes of the compression strength and the bending tensile strength of the pavement are not up to the standard. Therefore, if the existing permeable pavement is used in a high-speed service area, the existing permeable pavement needs to depend on the impermeable foundation load such as concrete, and the significance of low-influence development is lost.
To this end, a new device and/or method is urgently needed to solve the above problems.
Disclosure of Invention
The invention aims to: aiming at the problem that when the existing permeable pavement is used in a high-speed service area, impermeable basic loads such as concrete and the like need to be adopted, and the low-influence development significance is lost, a colored permeable integral pavement for the high-speed service area and a construction method are provided. This application has improved permeable pavement structure, and the permeable pavement after the improvement is under the prerequisite that satisfies low influence development requirement, and its basis bearing and pavement surface course bending tensile property are showing and are promoted, can be applied to heavy load road surfaces such as high-speed service area. The water-permeable and water-bearing composite pipe is reasonable in design, ingenious in conception, good in water permeability and bearing performance, and high in application value and application prospect.
In order to achieve the purpose, the invention adopts the following technical scheme:
a colored water permeable monolithic pavement for high speed service areas comprising:
the first leveling layer is arranged on the plain soil layer and is formed by laying coarse sand;
the first support layer is arranged on the first leveling layer and comprises a composite alloy honeycomb geocell and gravels arranged in a first filling grid in the composite alloy honeycomb geocell;
the second supporting layer is arranged on the first supporting layer and comprises a composite alloy honeycomb geocell and gravels arranged in a first filling grid in the composite alloy honeycomb geocell;
the grading layer is arranged on the second supporting layer and is formed by mixing and compacting 2-6 cm of aggregate;
the second leveling layer is arranged on the grading layer, is laid by coarse sand, and is formed by watering the laid coarse sand and filling gaps of the grading layer;
the colorful permeable pavement surface layer is arranged on the second leveling layer, is transported to the operation surface after being mixed by the surface layer raw materials of the colorful permeable pavement and is paved on the second leveling layer to form the colorful permeable pavement surface layer.
The first leveling layer is formed by directly laying coarse sand, and water can enter the plain soil layer through the coarse sand gaps in the first leveling layer. The thickness of the first leveling layer is 3-5cm, and no binders such as cement are contained in the first leveling layer.
A plurality of first filling grids are formed in the composite alloy honeycomb geocell of the first supporting layer, and the broken stones of the first supporting layer are filled in the first filling grids;
and a plurality of first filling grids are formed in the composite alloy honeycomb geocell of the second supporting layer, and the crushed stones of the second supporting layer are filled in the first filling grids.
The thickness of the second leveling layer is 20 mm.
The first supporting layer and the second supporting layer are respectively fixed transversely by reinforcing strips to the composite alloy honeycomb geocell of the first supporting layer and the composite alloy honeycomb geocell of the second supporting layer, and the first supporting layer and the second supporting layer are respectively fixed vertically by anchor rods to the composite alloy honeycomb geocell of the first supporting layer and the composite alloy honeycomb geocell of the second supporting layer.
The colored permeable pavement surface layer comprises a primary color bottom layer arranged on the second leveling layer and a colored surface layer arranged on the upper surface of the primary color bottom layer.
The primary color bottom layer is prepared by the following steps: firstly, mixing raw materials of a primary color bottom layer, and transporting the raw materials to an operation surface; paving the mixture of the primary color bottom layer on a coarse sand leveling layer, and compacting and leveling by using a low-frequency flat vibrator to form the primary color bottom layer;
the colored surface layer is prepared by the following steps: mixing the raw materials of the colored surface layer, and transporting the mixture to an operation surface; and spreading the mixture of the colored surface layer on the primary color bottom layer, and trowelling and collecting the slurry for the colored surface layer by using a trowelling machine to finish the laying of the colored permeable pavement surface layer.
The primary color bottom layer also contains basalt fibers, and is prepared by the following steps: firstly, mixing raw materials of a primary color bottom layer with basalt fibers to prepare a mixture of the primary color bottom layer, and transporting the mixture to a working surface; and spreading the mixture of the primary color bottom layer on the coarse sand leveling layer, and compacting and leveling by using a low-frequency flat vibrator to form the primary color bottom layer.
The thickness of the primary color bottom layer is 12-15 cm, and the thickness of the colored surface layer is 1-5 cm.
The thickness of coloured surface course is 3 cm.
The protective layer is formed by spraying a protective agent on the surface of the surface layer.
A construction method of a colored water-permeable integral pavement for a high-speed service area comprises the following steps:
(1) treatment of soil base layers
Rolling the soil base layer to form a plain soil layer with a smooth surface;
(2) first screed-coat laying
Paving a coarse sand layer with the thickness of 3-5cm on the plain soil layer with the smooth surface formed in the step (1), so as to form a first leveling layer on the surface of the plain soil layer;
(3) laying of supporting layer
Paving composite alloy honeycomb geocell on the surface of the leveling layer, fixing the composite alloy honeycomb geocell in the transverse direction and the vertical direction, forming a plurality of first filling grids in the fixed composite alloy honeycomb geocell, and filling broken stones in the first filling grids to finish the paving of a first supporting layer;
after the first supporting layer is laid, laying a second supporting layer on the surface of the first supporting layer;
(4) grading layer
Mixing 2-6 cm of aggregate according to a set proportion, then flatly paving the mixture on the surface of the second supporting layer, and compacting the mixture to a set compaction degree to obtain a graded layer;
(5) second screed lay-up
Paving a coarse sand layer with a set thickness on the surface of the grading layer, and watering for filling joints of the grading layer to form a second leveling layer;
(6) measurement leveling
The coarse sand leveling layer reaches the design elevation requirement through measurement leveling;
(7) mixing and transporting
Mixing the surface layer raw materials of the colored permeable pavement to obtain a second surface layer mixture, and conveying the second surface layer mixture to an operation surface; paving the second surface layer mixture on a second leveling layer to finish the paving of the color permeable pavement surface layer;
(8) and after the pavement of the color permeable pavement surface layer is finished, carrying out maintenance management.
In the step 1, before roadbed construction, the soil base layer is rolled in a dynamic compaction method mode, so that the compaction coefficient of the rolled plain soil layer is more than or equal to 93%.
In the step 3, the reinforced belts are adopted to transversely fix the composite alloy honeycomb geocell, and the anchor rods are adopted to vertically fix the composite alloy honeycomb geocell, so that a plurality of first filling grids are formed in the composite alloy honeycomb geocell.
In the step 5, the thickness of the second leveling layer paved on the surface of the grading layer is 20 mm.
And 6, after the measurement leveling is finished, carrying out the warehouse division and formwork support according to the size of the operation area.
And 6, after the measurement leveling is finished, cleaning the coarse sand leveling layer to enable the surface of the coarse sand leveling layer to be flat, solid and clean, and controlling the surface elevation error within 0-15 mm.
In the step 7, the time from the mixing of the surface layer raw materials of the colored permeable pavement to the completion of the surface layer laying is controlled within 60 min. Preferably, the mixture is discharged from the stirrer and then is conveyed to a construction site for paving and compacting, and the paving time is preferably controlled within 30-60 min.
In the step 7, the color permeable pavement surface layer comprises a primary color bottom layer and a colored surface layer arranged on the upper surface of the primary color bottom layer;
firstly, mixing raw materials of a primary color bottom layer, and transporting the raw materials to an operation surface; paving the mixture of the primary color bottom layer on a coarse sand leveling layer, and compacting and leveling by using a low-frequency flat vibrator to form the primary color bottom layer;
mixing the raw materials of the colored surface layer, and transporting the mixture to an operation surface; and spreading the mixture of the colored surface layer on the primary color bottom layer, and trowelling and collecting the slurry for the colored surface layer by using a trowelling machine to finish the laying of the colored permeable pavement surface layer.
In the step 7, mixing the raw material of the primary color bottom layer with basalt fiber to prepare a mixture of the primary color bottom layer, and transporting the mixture to a working surface; and spreading the mixture of the primary color bottom layer on the coarse sand leveling layer, and compacting and leveling by using a low-frequency flat vibrator to form the primary color bottom layer.
In the step 8, after the pavement of the color permeable pavement surface is finished, maintenance management is performed, and the maintenance management operation sequentially comprises: protecting finished products, joint-cutting and filling, maintaining pavement and spraying a protective agent.
In view of the foregoing problems, the present application provides a colored water permeable monolithic pavement for high-speed service areas and a construction method thereof. The method introduces and successfully realizes the concept of low-influence development in the construction process of the expressway service area for the first time.
The concept of Low Impact Development (LID) comes from the united states, which is a new rainwater management concept and technology system proposed and applied in the last 90 th century, and the key points of the concept are in-situ collection, natural purification, near utilization or groundwater recharge. The low-impact development is to pursue the minimization of the influence on the environment, particularly the minimization of the influence on the rain flood resource and distribution pattern in the design, construction and management of the development process. For low impact purposes, city design and land development must respect four honors: i.e. respecting water, surface soil, terrain and vegetation, and the core is respecting nature. In a sense, low impact development and sponge city construction may also be considered "synonyms".
The rationale of low influence development is the simulation nature, with dispersed small-scale control measure from the source control rainwater, through the hydrology characteristic before facility simulation development site development such as infiltration, filtration, storage, evaporation and delay, reduce the production of rainwater runoff from the source, control the runoff pollution in the runoff confluence process, reduce maximum peak flow, reduce the flood peak, reduce the probability that the low reaches produced flood disaster, also can reduce the pipe diameter of low reaches rainwater pipeline simultaneously, thereby reduce the pipeline cost. Low impact development attempts to combine site planning, land development and rain control technologies with ecological conservation to maintain or restore as much as possible the hydrological features of the development area before development.
A rainwater control technology based on a low-influence development principle comprises facilities with different functions of seepage, stagnation, storage, purification, utilization, drainage and the like. Compared with the traditional rainwater control and utilization method, the low-influence development can not only improve the environmental benefit of a development project, but also reduce the construction cost. The implementation of low-influence development can reduce the runoff flow and improve the runoff water quality, and the sustainable water circulation of a development area can be realized by adopting localized, ecological and low-energy-consumption rainfall flood control and utilization facilities.
In this application, adopt plain soil layer, first screed-coat, double-deck supporting layer, gradation layer, coarse sand screed-coat (be the second screed-coat), the structural design of colored permeable pavement surface course. The colored permeable integral pavement adopts a full permeable structural design, has a stable foundation structure, and can meet the requirements of corresponding bearing and pavement bending and tensile resistance; in the application, in order to reduce the influence of track rolling on the soil base layer under the water saturation condition and during the use of a road surface, the structural design of the double-layer supporting layer is adopted, so that the compressive stress of the top surface of the soil base can be effectively reduced, and the permanent deformation of the soil base is controlled; in the application, a second supporting layer and a first supporting layer are sequentially arranged below the grading layer, and the composite alloy honeycomb geocell is respectively used as a supporting framework in the two supporting layers, and then gravels are filled in the first filling grid in the composite alloy honeycomb geocell, so that the stability of the whole structural layer is controlled, the stability of the grading gravel layer is kept, and the rut rolling deformation of the base layer caused by bearing is reduced; meanwhile, based on the improved structure, the bending and pulling performance of the permeable surface layer is remarkably improved, so that the application requirement of the high-speed service area can be met.
The basalt fiber is a novel green environment-friendly material which is prepared by taking natural volcanic rock as a raw material and rapidly drawing the natural volcanic rock through platinum-rhodium alloy after high-temperature melting, and has higher strength and toughness. Preferably, the basalt fibers are added into the primary color bottom layer of the colored water-permeable whole pavement, so that the bearing capacity of the surface layer of the water-permeable pavement is further improved, the tensile strength of the water-permeable pavement is improved, the base layer and the soil foundation are effectively protected, and the risk of damaging a high-speed service area due to rutting rolling is reduced.
In conclusion, the whole road surface structure that permeates water of colour of high-speed service area of this application is from last down more and more sparse, later direct contact ground soil layer (ground soil layer is plain soil layer), and this road surface passes through the single coarse aggregate granule of cementing material slurry parcel particle diameter and forms the pile up structure of intercommunication hole to adopt the double-deck supporting layer after improving as supporting, thereby reach the whole road surface that has high water permeability and satisfy the load strength. The method is based on low-heat-absorption, cool, permeable and breathable materials, a road base structure is completely improved, the original water ecological environment and functions can be preserved or recovered while the road base structure is built and developed, the influence of development on the environment is reduced, a green and environment-friendly low-heat-conductivity-effect green ecological service area which is environment-friendly, low-carbon, energy-saving, user-friendly and environment-friendly is built, and the sustainable development of the road service area is promoted. By adopting the method and the device, the groundwater resources can be supplemented and reduced, and the ground settlement hazard can be reduced. Meanwhile, the method and the device are beneficial to attenuation of noise sound waves of urban traffic, reduce noise pollution and create a comfortable traffic environment.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of a colored water-permeable monolithic pavement in a high-speed service area in example 1.
Fig. 2 is a schematic perspective view of the composite alloy honeycomb geocell of the embodiment in a stretched state and fixed by a reinforcing strip and an anchoring rod.
Fig. 3 is a top view of a single first packing compartment.
Fig. 4 is a schematic structural view of the anchor rod.
Fig. 5 is a schematic structural diagram of a ribbed belt.
The labels in the figure are: 1. the color surface layer, 2, the primary color bottom layer, 3, the second leveling layer, 4, the grading layer, 5, the second supporting layer, 6, the first supporting layer, 7, the first leveling layer, 8, the plain soil layer, 21 and the first filling grid.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
In this embodiment, the preparation steps of the colored permeable integral pavement in the high-speed service area are as follows.
(1) Treatment of soil base layers
Before roadbed construction, the construction should be carried out on a soil base layer with a compaction coefficient of more than or equal to 93% and a smooth surface, and the soil base layer should be rolled in a watering and dynamic compaction mode. Namely, the soil base layer is rolled to form a plain soil layer with a smooth surface.
(2) First screed-coat laying
And (2) paving a coarse sand layer with the thickness of 3-5cm on the plain soil layer with the smooth surface formed in the step (1), so as to form a first leveling layer on the surface of the plain soil layer. In the step, a coarse sand layer with the thickness of 3-5cm is paved on the plain soil layer to form a first leveling layer, so that the paving of the supporting layer is facilitated.
(3) Laying of supporting layer
In this embodiment, a double-layer supporting layer is adopted for laying, and the double-layer supporting layer includes a first supporting layer and a second supporting layer.
The laying process of the first supporting layer is as follows: laying composite alloy honeycomb geocell on the surface of the leveling layer, stretching the composite alloy honeycomb geocell, forming a plurality of first filling grids in the fixed composite alloy honeycomb geocell, and fixing the composite alloy honeycomb geocell in the transverse direction and the vertical direction; and after the fixing is finished, filling the first filling grids with the gravels, and finishing the laying of the first supporting layer.
The laying process of the second supporting layer is as follows: laying composite alloy honeycomb geocell on the surface of the first supporting layer, stretching the composite alloy honeycomb geocell, forming a plurality of first filling grids in the fixed composite alloy honeycomb geocell, and fixing the composite alloy honeycomb geocell in the transverse direction and the vertical direction; and after the fixing is finished, filling the first filling grids with the gravels, and finishing the laying of the second supporting layer.
As shown in the figure, the present embodiment uses high-strength polymer reinforced belts to fix the composite alloy honeycomb geocell horizontally, and uses anchor rods to fix the composite alloy honeycomb geocell vertically in the first filling cells.
(4) Grading layer
And (3) mixing aggregates with the particle size of 2-6 cm according to the ratio of 3:3:4 (namely mixing aggregates with the particle size of 2, 4 and 6cm according to the ratio of 3:3: 4), then flatly paving the mixture on the surface of the second supporting layer, and compacting the mixture to a set compaction degree to obtain the graded layer. In the step, the mixed aggregate is spread and leveled on the surface of the second supporting layer, and the required compactness is achieved through vibration rolling.
(5) Second screed lay-up
And paving a coarse sand layer with the thickness of 20mm on the surface of the grading layer for filling joints and manually leveling, and watering to wet the coarse sand to form a second leveling layer.
(6) Measurement leveling
And marking the elevation, the center line and the side line of the second leveling layer according to a construction drawing to form pile number positions, arranging index piles on the edges of two sides of the road, and marking the elevation of the base layer. When the formwork is erected, the top elevation of the formwork is consistent with the designed elevation of the color permeable whole pavement surface layer.
(7) Cleaning and leveling
And cleaning the surface of the base layer in the mold to be flat, firm and clean, controlling the surface elevation error within 0-15 mm, and keeping the operation surface wet before pouring.
(8) Mixing and transporting
And (4) stirring by adopting a forced stirrer. When stirring, attention needs to be paid to the fact that aggregates with different colors are not mixed; if the condition is met, different mixers are needed to stir the aggregates with different colors respectively. The raw material measurement should meet the regulations of the existing national standard, concrete quality control Standard GB 50164-2011.
The aggregate, cement, binder, colorant and other fillers are added into the mixer at one time according to the construction mixing proportion, and then water is added gradually and mixed evenly.
And (3) the aggregate mixing site is close to the construction site, the mixture is discharged from the stirrer and then is conveyed to the construction site for paving and compacting, and the paving time is preferably controlled within 30-60 min.
In this embodiment, the colored permeable pavement surface layer comprises a primary color bottom layer and a colored surface layer arranged on the upper surface of the primary color bottom layer. Wherein the respective component compounding ratios are shown in table 1 below.
Table 1 example 1 mixing ratio of raw materials of color permeable pavement
The construction operation of the primary color bottom layer is as follows: firstly, mixing raw materials of a primary color bottom layer, and transporting the raw materials to an operation surface; and paving the mixture of the primary color bottom layer on the coarse sand leveling layer, and compacting and leveling by using a low-frequency flat vibrator to form the primary color bottom layer.
The construction operation of the colored surface layer is as follows: mixing the raw materials of the colored surface layer, and transporting the mixture to an operation surface; and spreading the mixture of the colored surface layer on the primary color bottom layer, and trowelling and collecting the slurry for the colored surface layer by using a trowelling machine to finish the laying of the colored permeable pavement surface layer.
Wherein, the mixture should be spread evenly, the flatness and the drainage gradient should meet the design requirements, and the loose coefficient during spreading is preferably 1.2. The paving is preferably leveled by adopting a low-frequency flat vibrator to tap, and the corners and the like are manually supplemented and leveled in time; the colored surface layer of the colored permeable whole pavement and the primary color bottom layer are poured synchronously, and the surface layer mixture can be continuously paved after the bottom layer is compacted and leveled. After spreading and compacting, a trowelling machine is preferably used for trowelling and collecting the slurry on the surface layer. The top surface of the template is required to be kept clean during leveling, and the surface of the seam is smooth.
(9) Finished product protection
After the colored permeable pavement surface layer is laid, protective measures such as fences, warning belts and manual care are set in time after pavement construction is finished, and maintenance is carried out after 24 hours. During pavement maintenance, traffic should be closed, and heavy objects should not be piled. And (5) after the pavement construction is finished for l-2 d, removing the template, and preventing the surface and edges of the pavement from being damaged during operation.
(10) Pavement maintenance
And after the pavement pouring is finished, starting maintenance, and during the maintenance, watering for moisturizing and forbidding use. And spraying a protective agent after curing for 5-7 days.
(11) Joint seam filling
After the pavement construction is finished, the contraction joint and the expansion joint are cut according to the design requirements within about 3d (the pavement strength reaches 45 percent of the design strength, and the cutting is preferably carried out without jumping seeds). The depth of the contraction joint cutting is preferably 2/3 of the thickness of the pavement, and the depth of the expansion joint cutting is the same as the thickness of the pavement. The width of the pavement contraction joint is 5mm, and the width of the pavement expansion joint is preferably 15 mm; the quantity of the contraction joints and the expansion joints of the pavement is determined according to the construction area, and the size of the separation area is preferably 25-30 m2. The pavement expansion joint is embedded with a flexible caulking material according to the design requirement, and the joint filling must be kept to be smooth with the pavement; when the design is not required, it shouldThe construction is carried out according to the requirements of joint construction in the technical regulation of permeable cement concrete pavements (CJJ/T135-2009) of the current national standard.
(12) Spray-coating protective agent
After the protective agent is sprayed on the pavement for 12 hours, the pavement can be put into use.
In the implementation, the design strength of the colored permeable whole pavement of the high-speed service area is C30, and the bending and pulling strength is C3.5; after the preparation is finished, the average compressive strength of the test block of the same condition of the pavement is C34.7, the average bending-pulling strength is C3.8, the water permeability is 1mm/s, and the design requirement is met; after the pavement is used for three months, the pavement is smooth and has no phenomena such as seed shedding and the like; after the road surface protective agent is used for one year, the road surface protective agent is used well without the phenomena of fracture, sinking and the like. The experimental results show that: the permeable pavement prepared by the application has good water permeability, the bending and tensile properties of the foundation bearing and the pavement surface layer are remarkably improved, and the permeable pavement can be applied to a high-speed service area and has good application value.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (10)
1. A colored water permeable monolithic pavement for high speed service areas comprising:
the first leveling layer is arranged on the plain soil layer and is formed by laying coarse sand;
the first support layer is arranged on the first leveling layer and comprises a composite alloy honeycomb geocell and gravels arranged in a first filling grid in the composite alloy honeycomb geocell;
the second supporting layer is arranged on the first supporting layer and comprises a composite alloy honeycomb geocell and gravels arranged in a first filling grid in the composite alloy honeycomb geocell;
the grading layer is arranged on the second supporting layer and is formed by mixing and compacting 2-6 cm of aggregate;
the second leveling layer is arranged on the grading layer, is laid by coarse sand, and is formed by watering the laid coarse sand and filling gaps of the grading layer;
and the color permeable pavement surface layer is arranged on the second leveling layer, is conveyed to the operation surface after being mixed by the surface layer raw materials of the color permeable pavement, and is paved on the second leveling layer to form the color permeable pavement surface layer.
2. The pavement of claim 1, wherein the first and second support layers are each secured laterally by ribbed belts to the first and second support layers, and wherein the first and second support layers are each secured vertically by anchor rods to the first and second support layers.
3. A pavement surface according to claim 1 or 2, wherein the colored permeable pavement surface comprises a primary color base layer disposed on the second screed layer, and a colored surface layer disposed on the upper surface of the primary color base layer.
4. A pavement according to claim 3, characterized in that said primary color base layer is prepared by the steps of: firstly, mixing raw materials of a primary color bottom layer, and transporting the raw materials to an operation surface; paving the mixture of the primary color bottom layer on a coarse sand leveling layer, and compacting and leveling by using a low-frequency flat vibrator to form the primary color bottom layer;
the colored surface layer is prepared by the following steps: mixing the raw materials of the colored surface layer, and transporting the mixture to an operation surface; and spreading the mixture of the colored surface layer on the primary color bottom layer, and trowelling and collecting the slurry for the colored surface layer by using a trowelling machine to finish the laying of the colored permeable pavement surface layer.
5. The pavement according to claim 4, characterized in that basalt fibers are also contained in the primary color base layer, and the primary color base layer is prepared by the following steps: firstly, mixing raw materials of a primary color bottom layer with basalt fibers to prepare a mixture of the primary color bottom layer, and transporting the mixture to a working surface; and spreading the mixture of the primary color bottom layer on the coarse sand leveling layer, and compacting and leveling by using a low-frequency flat vibrator to form the primary color bottom layer.
6. The pavement according to any one of claims 1 to 5, further comprising a protective layer disposed on the surface layer, wherein the protective layer is formed by spraying a protective agent on the surface layer.
7. A construction method of a colored water permeable integral pavement for a high-speed service area is characterized by comprising the following steps:
(1) treatment of soil substrates
Rolling the soil base layer to form a plain soil layer with a smooth surface;
(2) first screed-coat laying
Paving a coarse sand layer with the thickness of 3-5cm on the plain soil layer with the smooth surface formed in the step (1), so as to form a first leveling layer on the surface of the plain soil layer;
(3) laying of supporting layer
Paving composite alloy honeycomb geocell on the surface of the leveling layer, fixing the composite alloy honeycomb geocell in the transverse direction and the vertical direction, forming a plurality of first filling grids in the fixed composite alloy honeycomb geocell, and filling broken stones in the first filling grids to finish the paving of a first supporting layer;
after the first supporting layer is laid, laying a second supporting layer on the surface of the first supporting layer;
(4) grading layer
Mixing 2-6 cm of aggregate according to a set proportion, then flatly paving the mixture on the surface of the second supporting layer, and compacting the mixture to a set compaction degree to obtain a graded layer;
(5) second screed lay-up
Paving a coarse sand layer with a set thickness on the surface of the grading layer, and watering for filling joints of the grading layer to form a second leveling layer;
(6) measurement leveling
The coarse sand leveling layer meets the design elevation requirement through measurement leveling;
(7) mixing and transporting
Mixing the surface layer raw materials of the colored permeable pavement to obtain a second surface layer mixture, and conveying the second surface layer mixture to an operation surface; paving the second surface layer mixture on a second leveling layer to finish the paving of the color permeable pavement surface layer;
(8) and after the pavement of the colored permeable pavement surface layer is finished, carrying out maintenance management.
8. The method according to claim 7, wherein in the step 1, before the roadbed construction, the soil base layer is rolled by adopting a dynamic compaction method, so that the compaction coefficient of the rolled plain soil layer is more than or equal to 93%.
9. The method according to claim 7 or 8, wherein in the step 7, the colored permeable pavement surface layer comprises a primary color base layer, and a colored surface layer arranged on the upper surface of the primary color base layer;
firstly, mixing raw materials of a primary color bottom layer, and transporting the raw materials to an operation surface; paving the mixture of the primary color bottom layer on a coarse sand leveling layer, and compacting and leveling by using a low-frequency flat vibrator to form the primary color bottom layer;
mixing the raw materials of the colored surface layer, and transporting the mixture to an operation surface; and spreading the mixture of the colored surface layer on the primary color bottom layer, and trowelling and collecting the slurry for the colored surface layer by using a trowelling machine to finish the laying of the colored permeable pavement surface layer.
10. The method according to any one of claims 7 to 9, characterized in that in the step 7, the raw materials of the primary color bottom layer are mixed with basalt fibers to prepare a mixture of the primary color bottom layer, and the mixture is transported to a working surface; and spreading the mixture of the primary color bottom layer on the coarse sand leveling layer, and compacting and leveling by using a low-frequency flat vibrator to form the primary color bottom layer.
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